Method of simulating wood grain and stone markings



Nov. 22, 193.8.

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Application May 12, 1938, Serial No. 207,567

9 Claims. (Cl. 41-17) My invention relates to a method of creating rows, or simply by sanding and the necessary pleasing and natural reproductions of wood grain masking for matching. or stone markings, in which silk screens may be After the grain lines are dry a grain design or employed, and an acceptable plOClllCt prodlloed. impression in half tone dots is then applied or l My invention comprises such other objects, adprinted over said grain lines, preferably from a t.

Vantages and Capabilities as Will later more fully silk screen adapted to produce a desired design appear and which are inherently possessed by including all forms of matched panels. Said my invention. grain impression screen may be made in accord- While I have shown herein my preferred methance with my Patent #1,959,992 of May 22, 1934.

10 od, yet I wish it understood that the same is sus I prefer screens adapted to produce coarse half 10.1 ceptible of modication and change without detones because said screens are simpler and easier parting from the spirit of my invention. to make and are easier to use in obtaining de- Referring to the drawing Fig. l shows one form pendable uniformity in printing. Screens made of my grain lines; Fig. 2 shows my grain lines by my Patent #1,959,992 afford the advantage l5 for use in matched panel designs; Fig. 3 shows of producing a more contrasting printing of dif- 15..:

an actual wood grain impression on top of the ferent parts of the grain, thereby providing greatgrain lines. er strength and distinction. My coarse hali:` tone My method is particularly directed toward furscreens allow me to go to any size, even as large niture on which the simulation of a fine Wood as four foot wide wallboard panels-sizes which grain is desired. I iirst takea piece or article for photographic screens would become impossi- 2Q which Will form part of said furniture and preble to print and prohibitive because of their cost. pare the surface to be treated by applying a, 4My screen permits the reproduction of any kind ground coat by spraying, painting, printing, dipof wood grain or stone markings in oneor several ping or the like, or by merely sanding, sizing or colors.

g5 staining said surface. My method does not end with the applying of 25,

I then apply 0r print on said prepared surface a the wood design impression in half tone dots to plurality of grain lines from a silk screen, prothe surface of the article because the appearance ducing lines in substantially the same color as is at this stage too Coarse, hard and artioal. the ground coat or in a transparent medium to While the impression is still Wet a solvent iS apkeep the grain lines as nearly invisible as possible, plied thereto by spraying said impressio-n or dip- 30 The screen from which these grain lines are pins the article having Said impression into a lqprinted is made in such a Way that the grain lines uid- The SOlVenlS softens the impressionprinted therefrom always go in the directions of 'I'he article is then held level or placed on a level actual Wood grain. surface so that the half tone dots, beginning to The grain lines may be formed in continuous Spread upon the softening of the impression, will 35. or broken lines in any desired number or ShapeV spread in the grain lines to the softened line or For example, the grain lines may form substan- Streak of genuine Wood grain- Where the grain tially parallel and alternate ridges and furrows lines 0f a Inatohed Panel eXend in Various difas shown in Fig, 1, ferent directions the half tone dots will follow the 40 My grain lines are important when the repreparticular grain lines in each section and flow lo ductions of the various wood grains of matched in the natural direction 0f genuine Wood. panels such as X matched, V matched or diamond The SOfteniner Can be Controlled by adjustingr matched panels are desired. For every different the Consistency and Visoosity of the printing Inesection of these matchedV panels grain lines are olum and the strength or qualities 0f the soften- 45. rst provided as shown in Fig. 2 running in the ing agent Such as its Speed 0f drying, eVaDoIai/lng 45, same directions in this conned area as the grain and dsSolVing- A strong and slOW drying Solvent design er impression W11] run may flow out completely agrain impression and While 1 neve indicated that these grain lines obliterate it. A weak and fast evaporating solare preferably produced by printing from silk Vent may not be able 15o Cause any softeningr al? screens having grain line producing portions beall on a highly viscous or tough bodied impression. 50M cause printing is fastest and most accurate, yet it I prefer lacquers since they are used predomif is within the contemplation of my invention that nantly as iinishing material and because they can the grain lines may be produced in any desirable be easily adjusted by the wide range of viscosities way, such as by rollers, combs, metal brushes or and drying speeds. V

other tools adapted to produce ridges and fur- The ground coat should be made so that it will 555;

not be attacked and softened too easily by the action of the solvents used in the softening process. This can be easily accomplished with any finishing material, since we have different groups 6 of lacquers with their particular solvents and in oil, japan or synthetic colors We do not need to fear the softening of the ground coat.

In cases where it is desired ,to reproduce single pieces where portions are not to be matched as 10 shown in Fig. 2, I may eliminate that step in my method in which the grain lines are applied.v

In the reproduction of such pieces where the grain impression is normal andlfollovvsV ageneral direction, immediately after the step in my 16 method of applying the solvent- I tilt the pieces so treated. This tilting causes the halftone: dots to flow in natural channels to softened lines or streaks. Therefore in preparing such single pieces I omit that step in my method in which 20 grain lines are applied and instead of leaving tlie:si'llventtreatedv article level I tilt? it to acquire the softening natural wood grain effect. Otherwise mymethod' is the same.

It is obvious that. tilting could not be used 251where' thereare matched portions because tilting can only befused when the flow of the half tone'fdots is in' the same general direction. When matched panels are desired, now in the direction for one panel would ruin another panel'requiriingowin another direction. Therefore Where matched' panelsare to be formed it isnecessary to apply thev grainlines extending in the direction of flow'of ea'chpanel before the grain design is appliedfto the respective panels'. Upon 355 the solvent being added andv article laid level the half tone dots will spread in the correct direction's in each` panel on the properly prepared grain lines.

My rnethodisvv simpler and faster' than other -graining methods such asr spraying or rolling,

requires-no expensive special equipment and canv be'easily learned and properly used by the inexperienced in.- a short' time.

While my method is particularly applicable to' the reproduction of wood grains, it is equally effective in simulating marble or the like in which there are well defined markings.

While I have indicated herein the use of half a liquid solvent for said half tone dots on said grain impressions and placing said article on a level surface so that the solvent will cause the half 4tone `dots to spread on said lines and thereby soften and impart to said grain impressions when dry lthe appearance of genuine wood grain.

2. The method of vsimulating Wood grain markings comprising applying a ground coat to the surface of an article to be' treated, applying lines on said groundcoat, applying grain impressions in half tone dots over said lines, applying While said half'tonel dots are stillwet' a liquid solvent for said half tone dots on said grainimpressions and placing said article on aV level surface so u--that the'n solvent will' cause thehalf tone dots to spread on said lines and thereby soften and impart to said grain impressions when dry the appearance of genuine wood grain.

3. The method of simulating Wood grain markings comprising printing substantially invisible lines on the prepared surface of an article to be treated, printing a grain design in half tone dots over said lines, applying a liquid solvent for said half tone dots to said grain design while the half tone dots are still Wet and placing said article on a level surface so that the solvent will cause the half tone dots to spread on said lines` and thereby-soften and impart to said grain design when'fdry the appearance of genuine Wood grain.

4. The method of'simulating wood markings comprising forming grain lines on the prepared surface of an articleto be treated, placing grain markings in half tone dots over said grain lines by use of a silk screen having a grain design, applyinga'l liquidisolvent for said half tone dots toA said grain design! while the half tone dots are stillwet, and' placing said article on a level surface'so that the solvent will cause the half tone dots to spread on the grain lines and thereby soften and impart to said grain design when dry the appearance of genuine Wood grain.

5. The method of simulating Wood markings in matched sections comprising forming grain lines in sections on-the prepared surface of an article to'be treated, said grain lines extending within each section in the directions of thel grain impressions to be superimposed thereon, placing matched grain impressions 'in half tone dots over corresponding sections of grain' lines, applying a liquid solvent for said half tone dots to said matched sections while the half tone dots are still wet, and placing said article on a level surface so that the solvent will cause the half tone dots to'spread on` the grainI lines in each section and thereby soften and' impart to said matched-sections when dry the appearance of genuine Wood-grains;

6. The method of simulating marble markings comprising applying lines` to theprepared surface of an articleto be treated, applying marble impressions in half.l tone dots-over said lines, applying whileisaid half tone'dots are still wet a liquid solvent for said half tone dots on said marble impressions and placingsaid article on a level surface so that the solvent will cause the half tone dots to spread on the linesv and thereby soften and impart to said marble impressions when dry the appearance of genuine marble.

'7. The method of simulating marble markings comprising applying marble impressions to the prepared surface. of an article to be treated in halftone dots, applying while said half tone dots are still Wet a liquid solvent for said half tone'dots on said marble impressions and tilting said article so that the solvent will cause the halftone dots to iiovv andy thereby soften and impart to said marble impressions when dry the appearance of genuine marble.

8. The method of simulating Wood grain markings comprising applying. grain impressions in half tone dots to theY prepared surface of an article to be treated,4 applying While said half tone dots are'still wet a liquid solvent for said half tone dots on said grain impressions and tilting saidarticle'so that the solvent Will cause the half tone dots to flow andv form lines and thereby soften and impart to said grain impressions when dry the appearance of genuine Wood grain.

9. The method of simulating Wood grain markings comprising applying a ground coat to the surface of an article to be treated, applying grain impressions in half tone dots over said ground coat, applying While said half tone dots are still Wet a liquid solvent for said half tone dots on said grain impressions and tilting said article so that the solvent will cause the half tone dots to iiow 'and form lines and thereby soften and impart to said grain impressions when dry the appearance of genuine Wood grain.

FRANZ WEISS. 

